Product Description
The ATS 309-832-4362 Stage 3 Allison LCT1000 Transmission Package is a performance-driven upgrade for 2011–2016 6.6L LML Duramax trucks. Designed to eliminate factory transmission limitations, this 2WD package delivers increased torque capacity, improved shift performance, and enhanced durability for towing and daily driving applications.
Built with upgraded clutch packs, precision-machined components, and ATS engineering, the Stage 3 transmission provides a strong balance between performance and reliability. Paired with the ATS Five Star torque converter and deep transmission pan, this package improves power transfer while maintaining smooth drivability.
This transmission is ideal for moderately modified trucks and heavy towing setups, offering a significant increase in holding capacity over stock while maintaining long-term dependability.
FAQ
Q: What is the difference between Stage 3 and higher ATS stages?
A: Stage 3 is designed for moderate power levels and towing, while higher stages include more billet components for extreme horsepower applications.
Q: Is this transmission suitable for towing?
A: Yes, Stage 3 is an excellent choice for towing, providing improved clutch holding capacity and cooler operating temperatures.
Q: Does this package include a torque converter?
A: Yes, it includes the ATS Five Star torque converter for improved efficiency and torque multiplication.
Q: How much power can this transmission handle?
A: Stage 3 transmissions are typically suited for trucks in the 500–650HP range depending on setup.
Fitment
- 2011 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2012 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2013 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2014 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2015 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2016 Chevrolet Silverado 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2011 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2012 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2013 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2014 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2015 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (2WD)
- 2016 GMC Sierra 2500HD/3500HD 6.6L LML Duramax (2WD)
Key Features
- Designed for 500–650HP applications
- Improved clutch capacity over stock
- ATS Five Star torque converter included
- Deep transmission pan for increased fluid capacity and cooling
- Enhanced shift quality and durability
- Ideal for towing and daily driving
- Built for long-term reliability under load
Specifications for ATS 309-832-4362
| Specification | Details |
|---|---|
| Part Number | 309-832-4362 |
| UPC | Not Available |
| GTIN | Not Available |
| Transmission Type | Allison LCT1000 Stage 3 |
| Drivetrain | 2WD |
| Engine Compatibility | 6.6L Duramax LML |
| Model Years | 2011 - 2016 |
| Horsepower Rating | Up to 650 HP |
| Torque Capacity | Significantly Increased Over Stock |
| Shipping Weight | Approximately 400 lbs |
| Shipping Method | Freight (Core Charge Applies) |
| Warranty | 5 Year / 500,000 Mile Limited Warranty |
| California Prop 65 | WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
